import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/Login.vue'
import Home from '@/components/Home.vue'
import Welcome from '@/components/Welcome.vue'
import Users from '@/components/user/Users.vue'
import Rights from '@/components/power/Rights.vue'
import Roles from '@/components/power/Roles.vue'
import Cate from '@/components/goods/Cate.vue'
import Params from '@/components/goods/Params.vue'
import GoodList from '@/components/goods/List.vue'
import Add from '@/components/goods/Add.vue'
import Order from '@/components/order/Order.vue'
import Report from '@/components/report/Report.vue'

Vue.use(VueRouter)

const routes = [{
    path: '/',
    redirect: '/login',
}, {
    path: '/login',
    component: Login,
    title: '后台登录页'
}, {
    path: '/home',
    component: Home,
    title: '电商后台管理系统',
    redirect: '/welcome',
    children: [
        { path: '/welcome', component: Welcome },
        { path: '/users', component: Users },
        { path: '/rights', component: Rights },
        { path: '/roles', component: Roles },
        { path: '/categories', component: Cate },
        { path: '/params', component: Params },
        { path: '/goods', component: GoodList },
        { path: '/goods/add', component: Add },
        { path: '/orders', component: Order },
        { path: '/reports', component: Report },
    ]
}]

const router = new VueRouter({
    routes
})

// 挂载路由导航守卫
router.beforeEach((to, from, next) => {
    // to : 将要访问的路径
    // from : 从哪个路径跳转而来
    // next : 是一个函数,表示放行
    //    next() 放行 next('/login') 强制跳转
    if (to.path === '/login') return next();
    // 获取token
    const tokenStr = window.sessionStorage.getItem('token');
    if (!tokenStr) return next('/login')
    next();
})

export default router